import { OnModuleDestroy, OnModuleInit } from '@nestjs/common';
import { NacosConfigClient } from './nacos-config.client';
import { ClientOptions } from './nacos-config.interface';
import { DiscoveryService } from '@nestjs/core';
export declare class NacosConfigService implements OnModuleInit, OnModuleDestroy {
    private readonly discoveryService;
    private readonly options;
    private readonly logger;
    private configClient?;
    private readonly listeners;
    constructor(discoveryService: DiscoveryService, options: ClientOptions);
    onModuleInit(): Promise<void>;
    onModuleDestroy(): Promise<void>;
    getConfigClient(): NacosConfigClient | undefined;
    getConfig(dataId: string, group?: string, isParse?: boolean): Promise<any>;
    private printLog;
    scanAllProviderPropertyMetadatas(metaKey: string | string[], cb: (instance: any, propertyKey: string, metadata: any, metaKey: string) => any): Promise<void>;
}
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